Gregor Zurowski created FELIX-5038:
--------------------------------------
Summary: Configuration properties are not synchronized with config
files when adding Metatype information
Key: FELIX-5038
URL: https://issues.apache.org/jira/browse/FELIX-5038
Project: Felix
Issue Type: Bug
Components: Configuration Admin
Reporter: Gregor Zurowski
Priority: Minor
In a Karaf/Blueprint setup, I noticed an issue related to Config Admin and
Felix File Install where configuration properties are not synchronized with the
corresponding configuration file once Metatype information is added to the
bundle.
In a simple test bundle, the configuration properties are implemented using
property placeholders in Blueprint as follows:
blueprint/blueprint.xml
=================
[...]
<cm:property-placeholder id="config-test-blueprint-placeholder"
persistent-id="test.config" update-strategy="reload">
<cm:default-properties>
<cm:property name="test.property.1" value="Test 1" />
</cm:default-properties>
</cm:property-placeholder>
[...]
The corresponding configuration file in $KARAF_HOME/etc looks as follows:
etc/test.config.cfg:
==============
[...]
test.property.1 = Test Value 1
[...]
When adding the following Metatype information, the synchronization mechanism
stops working, i.e. changes made in OSGi config admin using webconsole are not
written back to the configuration file:
metatype/metatype.xml
==================
[...]
<AD name="Test Property 1" id="test.property.1" required="true"
type="String" default="Default value 1" description="This is test
property 1" />
[...]
The only way to fix synchronization is to add the following attribute
definition to Metatype:
[...]
<AD name="felix.fileinstall.filename" id="felix.fileinstall.filename"
required="true" type="String" default="" description="Don't modify
this property!" />
[...]
This has been also discussed on the Karaf users mailing list, see:
http://karaf.922171.n3.nabble.com/Blueprint-Property-Placeholders-with-Metatype-Information-td4042619.html
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